Beater-roll adjuster



June 24, 1924. 1,499,131

c. w. UNKLE BEATER ROLL ADJUSTER Original Filed Oct. 18,1922 3Sheets-Sheet IL Nil/a770,? CHARLES W: U NKLB June 24 1924.

Original Filed Oct. 18 1932 1,499,131 c. w. UNKLE BEATER ROLL ADJUSTER 3Sheets-$heet 2 INVENTOE.

CHARLES w. unxua June 24, 1924. l "1,499,131

C. W. UNKLE BEATER ROLL ADJUSTER Original Filed 001.. 18 1922- I5Sheets-Sheet. 5

Q I ll// 7 UH" g7:\\ M 77 I 74 i l If i z 1 g5 Patented June 24, 1924.

nrrsn STATES PATENT OFFICE.

"- W. UNKLE, OF BALTIMORE, OHIO, ASSIGNOB TO THE GBILEY-m ENGINEERINGsome, or nancasrnn, onro.

HEATER-ROLL ADJUSTER.

Application filed October 18, 1922, Serial No. 595,839. Renewed May 9,1824.

To all whom if may concern. v

Be it known that I, CHARLES W. UNKLE,

a citizen of the United States of America,

residing at-Baltimore, in county of Fairfield and State of Ohio, haveinvented certain new and useful Improvements in Beater- Roll Adjusters,of which the following is a specification.

My present invention relates generally to machines for the reduction ofaper to pulp,

and more particularly to w at are commonly known in the paper makingindustry as tub heaters, consisting as they do of an elongated tub withrounded ends, in which the paper to be pulped, together with thenecessary water or other liquid or liquids with which the paper is to beprocessed, are

placed. 1

It is well known in the paper making industry that in addition to thistub, heaters of this ty e have centrally and longitudi nally of t e tubwhat is knownas a midfeather permitting of a circulation of materialaround its ends and within the tub, which circulation is induced by theaction of the beater roll operating approximately at the center of thetub upon one side of the mid-feather and generally constructed of woodand embodying knives or fly bars with 3 which it is thus the usual bedplate havmg cave surface and mounted in the the tub below the beaterroll.

It is also well known that the beater roll in these constructions ismounted on a shaft extending transversely across the tub and providedoutside of the latter with a belt receiving pulley, the shaft beingadapted to be shifted vertically in order to ad ust the beater rolltoward and awe from the bed plate. For this purpose t e endsof the shaftare journaled intermediate the ends of side lighter bars these lighterhere be ng pivotally supported at one end and haying their op osite endsfree for vert1cal ad ustment w ereby similar adjustment is communicatedto the shaft and the beater roll.

At the present time the practice 18 to raise and lower the verticallymovable ends an u per conottom of equipped to cooperate with of thelighter bars by hand, and it has been For the above reasons my inventionaims in the first instance to rovide a mechanical means for adjustingthrough the same, the beater roll, is capable of being easily andquickly regulated soas to overn the extreme limits of movement of t ebeater roll toward and away from the bed plate, and a further object isthe provision of a beater roll adjusting mechanism which willautomatically throw out of action as the end of each upward or downwardadjusting movement of the roll is reached.

A still further object of the invention is t e lighter bars, and

the provision of a mechanism of this character by means of whichthepower for raising and lowering the beater roll may be taken from thebeater roll shaft and in this way avoid the necessity for extra owerconnections, that is be 0nd those or inarily required and a still urtherobject is the provision of a mechanism which ma be readily installed inconnection with tub heaters now in use, which will be small, compact,strong and durable, and one which will efiectively and efficientlyperform the desired functions.

The accompanying drawings, which form ,a part of this specification,illustrate the preferred structural form of the invention, and embodyseveral figures of which Figure 1 is a top plan view of a tubbeatershowing the same equipped with my improvements,

Figure 2 is a side elevation thereof,

Figure 3 is an enlarged side view. of one of the lighter bars, showingthe supports thereof in section,

Figure 4 is a side view of one end of the worm shaft and the supportsadjacent thereto, i

Figure 5 ,is a side view of the gear case,

Figure 6 is a central vertical transverse section through the ar case,

Figure 7 is a horizontal section through the gear case takensubstantially on line 7-7 of Figure 6,

Figures 8 and 9 are detail horizontal sections of ortions of the gasillustrating the clutc in its two active POSltiODB,

Figure 10 is a horizontal section through the gear case taken on line10-10 of Figure 6,

Fi re 11 is a; fragmentary Iongituai .sectio ii taken through the upertipn of the gear case, showing the c shlftmg yoke in inactive positionwith the lock released,

Fi ure 12 is a detail side view. of the clutc shifting yoke showing thesame locked,

Figures 13 and 1e are diagrams respectively in side and top plan v1ew ofthe train of active gears when the clutch 1s shifted in one direction,and I Figures 15 and 16 are diagrams respec'- tively in side and topplan showing the active gear train when the clutch is shifted in theopposite direction.

Referring now to these figures, and particularly to Figures 1 and 2, Ihave shown a pulp beater of that type including a tub within which amid-feather 26 provldes for the circulation of pulp around the endsthereof under the effect of rotation of the beater roll 27 which may beof any suitable construction and which, in addition to its rotation andits action upon the pulp through the knives or flybars with which it isprovided, is vertically adjustable toward and away from theiupperconcave surface of the bed plate seen at 28 in Figure 2, with which theroll cooperates in the grinding of the ul I p e bed plate 28 is ofcourse mounted within the tub- 25 upon the same side of the mid-feather26 as t e roll 27 and below the latter, and in action when fillin thetub with old paper or other material to be pulped, the beater roll iselevated and spaced substantially above the bed plate, to save power andwear of the parts while the material is as yet raw or unbeaten, thedistance of spacing depending to some extent at least, upon theparticular material as well as upon the speed with which the tub isbeing filled.

During the ulping operation the beater roll .is gradua 1y lowered towardthe bed plate until it reaches the minimum s acing at which it ceases tomove downwar ly, although it continues to rotate during and after itsdownward movement until the pulping is completed.

or the above purposes the beater roll shaft 29, upon which the beaterroll is fixed, extends across and above the tub 25 and in addition tothe belt pulley 30 thereof, its ends are journaled through 1i hter bars31 intermediate the ends of the atter as best seen in Figure 3 "Theselighter bars, one at each side of the tub 25 are supported in sideframes 32 in portions of whichthe bars are pivoted atone" end as at 33,the op posite ends thereof being free for vertical movement'in otherortions of the frames. These free. ends of t e lighter bars ma forinstance, be pivotally connected to the ower ends of screw rods 34:extending upwardly therefrom, through adjusting nuts 35 which,

as seen in- Figure 4, rotate in horizontal wearer planes upon the upperportions of the frames and may be in the form of worm wheels.

Across the tub 25 is exten ed a worm shaft 36 for the support of whicthe frames 32 have bearing brackets 37, and fixed upon this shaft areworms 38 engaging the worm wheel adjusting nuts 35 so that upon rotationof the worm shaft the lighter bars 31 will be simultaneously raised orlowered depending upon the direction of such rotation and the beaterroll 27 and its shaft 29 will be similarly raised or lowered.

According to the present invention, the

worm shaft 36 has at one end a journal bracket 39 provided with upperand lower outstanding arms 40, and also has a sprocket wheel ll whereby,as will be hereinafter made plain, it may be driven through a sprocketchain 42 from the beater roll shaft 29.

For these urposes, one flanged end of the beater roll s aft 29 as seenin dotted lines in Figure 7 provides for connection, by bolts and thelike 43, of an axially projecting extension shaft 44 which extensionshaft has upon its inner and outer portions sleeve gears 45 and 46 bestseen in Figure 7 the sleeves 47 of which gears rotate on the shaft andwithin the opposite journals 48 of a gear case i9 through which saidextension shaft is mounted. With the sleeve 47 of the inner gear 45, asprocket wheel 50 is rigid and thus disposed inwardly beyond the gearcase 49 so as to freely receive the sprocket chain 4-2. The sleeve 47 ofthe outer gear may receive a screw cap 51 outside the gear case and thiscap may su port a lubricator 52 froin which grease and the like ma beforced into channels of the extension s aft as seen in dotted lines inFigure 7 and thus to the gears 45 and 46.

The gears 45 and 4.6 have external teeth and their opposing faces areinternally notched to cooperate with the opposite clutch faces 53 of aclutch sleeve 54 splined on the shaft 44: between, and movable into engaement with either of, the said gears, sai sleeve having an annulargroove in which a yoke 55 is seated. This yoke is integral atits upperportion with a sleeve 56 slidable on a cross rod 57 in the upper portionof the ear case above and paralleling shaft 4A and eld between springs58 on said rod whereby the clutch sleeve will be normally held incentered or neutral position free of both gear clutches.

The upper portion of the yoke sleeve 56 has rack teeth 59 engaged by agear 60 at the inner end of a control shaft 61 journaled in the upperportion of the gear case 49 at t will also be noted that yoke its sleeve56 has a shoulder 63 at one side presenting a concave upper face withwhich the reduced inner end 64 of the stem 65 of a lock 66 mounted inthe adjacent wall of the gear case may cooperate in one position as seenin Figure 12 so as to prevent movement of the yoke and thus avoidmanipulation of the parts except by those delegated to do so.

lVhen the clutch member 54 is shifted into engagement with gear 46.rotation of the extension shaft 44 is thus communicated to said gear 46and from the latter to a gear 67 on a lower shaft 68, with which gear 67the clutch gear 46 is constantly in mesh.

Gear 67 of shaft 68 is fast with a worm 69 and is in mesh with gear 70at one end of a shaft 71 parallelin the shaft 68 and having at itsopposite end a gear 72 constantly in mesh with the clutch gear 45 sothat the latter will thus be driven in a direction opposite to that itwould be driven if the clutch member 54 were directly engaged therewith.This gearing, all enclosed within the gear case 49 is plainly to be seenby a comparison of Fi ures 7 and 10 together with the diagrams Figures13 and 15.

The worm 69 just above mentioned, which is obviously driven in onedirection when gear 45 is clutched and in the opposite direction whengear 46 is clutched, is in constant mesh with the lower worm wheel 73 ofan upright shaft 74 journaled in the gear case and upon which said wormwheel and a pair of vertically spaced clutch throw off arms 75 and 76are splined. The upper end of this shaft is threaded as at 77 and worksin a threaded bore 78 in the top of the gear case so that when the shaftis rotated it moves up or down, depending upon the direction of suchrptation, and one of the throw off arms 75 and 76 will finally come intoaction against a lug or projection 79 extending from the clutch sleeve54.

The throw off arms 75 and 76 are adjustable by means of screw stems 80and 81 whose heads 82 abut one another within a recess 83 of the shaft74 and it is thus ob vious either one or both of the throw off arms maybe adjusted up or down so as to thereby regulate theupper and lowerlimits of vertical adjustment of the beater roll and the extent ofadjusting movement thereof between such limits.

Thus when the operator swings handle 62 to the left in Figure 5, theclutch shifting yoke 55 is moved to the right and clutch sleeve 54 willbe engaged with gear 46 with the result that through the chain of gearsseen in Figures 15 and 16 shaft 74 will be rotated in a directionopposite the arrow in Figure 7. Thus shaft 74 will lower until finallythrow out arm 76 will strike the projection 79 and throw the clutchsleeve 54 out of engagement with the gear 46 as indicated in Figure 8.The reverse of this action takes place when the clutch member is engagedwith the gear. 45, the vertical shaft 74 moving upwardly and the lowerthrow off arm 75 finally coming into action against the clutch sleeve asin Figure 9. It is thus to be seen that after once starting theoperation, no further attention is required of the operator and thatwhen the beater roll reaches the set limit of its adjusting movementeither up or down. it will be automatically stopped and the ad'ustingmechanism thrown out of action untii again started for the adjustingimovement of the roll in the opposite direction.

For the non-shifting support of the gear case 49 as a whole, a pair-ofrods 83 extend from one side thereofin'parallel relation to, and connectwith, the arms 40of the worm shaft bracket 39 before described.

It will thus be observed that I not only mechanically control and limitadjusting movement of the beater roll and its rotating shaft duringrotation thereof, but I em loy for this purpose the power rotations othe shaft and, by the same power provide for the automatic stopping ofadjusting movement of the shaft when it reaches the set limit ofadjusting movement in either direction.

It will also be observed that I provide for ready adjustment of thelimits of movement of the beater roll shaft as the adjusting screws 80'and 81 are easily through an opening 84 in one side of the gear caseasshown particularly in Figure 6.

I claim:

1. The combination with a beater roll and its shaft rotatable andvertically shiftable, of mechanical means for controlling and limitingvertical shifting movements thereof, said meansbeing adjustable to varythe limits of such shifting movements.

2. The combination with a rotatable and vertically shiftable beater rolland its shaft having power actuated means for rotating the same, ofmechanical means for vertically shifting the same having means to throwthe said shifting means out of action at the limits of shiftingmovement.

3. The combination with a rotatable and vertically shiftable beater rolland its shaft having power actuated means for rotating the same, ofmechanical means for vertically shifting the same having means to throwthe said shifting means out of action at the limits of'shiftingmovement, said last named means being manually adjustable to vary thelimits.

of shifting movement.

4. A rotatable beater roll and its shaft having means actuated by thesame in its rotation for shifting the beater roll and shaft verticallyand automatically checking the same at the limits of shifting movement.

5. A rotatable beater roll and its shaft accessible having meansactuated down adjusting by the same in its rotation for shifting thebeater roll and shaft vertically and automatically checking the same atthe limits of shifting movement, said checking means being adjustable tovary the limits ofshifting movement.

6. A rotatable and vertically adjustable beater roll and its shafthaving mechanical means for adjusting the same including a manuallengageab e two-way clutch, and means "or automatically disengaging saidclutch at the limits of adjustment of the beater roll and its shaft.

7. A rotatable and vertically adjustable beater roll and its shafthaving mechanical means for adjustin the same including a manuallyengageab e two-way clutch, and means for automatically disengaging saidclutch at the limits of adjustment of the beater roll and its shaft,said last named means being manually adjustable to vary the limits ofadjusting movement of the beater roll and shaft.

- 8. A beater roll and its shaft having rotatable and up and downadjustin movements, mechanism for adjustin t e same having actuatingconnections wi i the shaft including a manually engageable clutch, andmanually adjustable means actuated by said mechanism for automaticalldisengagin said clutch is the limits said up and movements 9. Arotatable beater roll and its shaft, vertically adjustable sup orts inwhich said shaft is journaled, an a justing shaft similarly geared "tosaid supports, a gear case mounted in connection with the roll shaft,and gearin within said casing including a gear flexio'y connected tosaid adjusting shaft and also including a manually engageabledirection-controlling clutch forming a ggn fitection between saidgearing and the roll a 10. A rotatable beater roll and its shaft,

vertically adjustable sup orts in which said shaft is journaled, an ajusting'shaft similarly geared to said supports, a gear case mounted inconnection with the roll shaft, gearing within said casin. including acar flexibly connected to sai adjusting s aft and also including amanually engageable two-way clutch for operatively connecting the gearinwith the roll shaft, and a mem ber movab e within the gear caseand-actuated by said gearin having clutch throw out-elements movabletherewith to release the clutch at the limits of adjustable movement ofsaid supports.

11. A rotatable beater roll and its shaft, vertically adjustablesupports in which said shaft is journaled, an adjusting shaft similarlygeared to said supports, a gear case mounted in connection w1th the rollshaft, earing within said casing includin a gear 1 exibly connected tosaid adjusting s aft and also including a manually engageable twowayclutch for operativelv connecting the gearin with the roll shaft, and amember movab e within the gear case and actuated b said gearin havingclutch throwoutefiaments move is therewith to release the clutch at thelimits of adjustable movement of said sup orts, said throw-out elementsbeing manua l and independently adjustable on said mem er for the pn osedescribed,

12. A rotatable and vertically adjustable beater roll havina mechanismactuated by rotation thereof same, said mechanism including manuallycontrolled starting means and having automatic manually adjustablestopping means, as described;

In testimony whereof I have afiiued my signature.

oneness "w.

fbr vertically shifting the i

